timeouts call-disconnect

To configure the delay time for which a Foreign Exchange Office (FXO) voice port waits before disconnecting an incoming call after disconnect tones are detected, use the timeoutscall-disconnectcommandinvoice-port configuration mode. To reset to the default, use the no form of this command.

timeoutscall-disconnect
{ seconds | infinity }

notimeoutscall-disconnect

Syntax Description

seconds

Duration in seconds for which an FXO voice port stays in the connected state after the voice port detects a disconnect tone. Range is 1 to 120. The default is 60.

infinity

Disables disconnect supervision. The voice port does not disconnect when a disconnect tone is detected.

Command Default

60 seconds

Command Modes

Voice-port configuration

Command History

Release

Modification

11.3(9)T

This command was introduced on Cisco 3600 series routers.

12.0(4)T

This command was introduced on Cisco 3600 series routers.

12.2(2)T

This command was implemented on Cisco 1750, Cisco 2600 series, and Cisco MC3810. The infinity keyword was added.

Usage Guidelines

Use this command to change the time for which an FXO voice port remains connected after the calling party hangs up, when a call is not answered. Use of the infinity keyword is not recommended for disabling the disconnect supervision feature.

Examples

The following example configures voice port 0/0/1 to remain connected for 3 seconds while a disconnect tone is received by the voice port:

Specifies the delay time for releasing the calling voice port after a disconnect tone is received from the called voice port.

timingdelay-duration

Configures the delay dial signal duration for a specified voice port.

timeouts initial

To configure the initial digit timeout value for a specified voice port, use the timeoutsinitialcommand in voice-port configuration mode. To reset to the default, use the no form of this command.

timeoutsinitialseconds

notimeoutsinitialseconds

Syntax Description

seconds

Initial timeout duration, in seconds. Range is 0 to 120. The default is 10.

Command Default

10seconds

Command Modes

Voice-port configuration

Command History

Release

Modification

11.3(1)T

This command was introduced on Cisco 3600 series routers.

Usage Guidelines

Use the timeoutsinitialcommand to specify the number of seconds for which the system waits for the caller to input the first digit of the dialed digits. The timeouts initial timer is activated when the call is accepted and is deactivated when the caller inputs the first digit. If the configured timeout value is exceeded, the caller is notified through the appropriate tone and the call is terminated.

To disable the timeouts initial timer, set the seconds value to 0.

Examples

The following example sets the initial digit timeout value to 10 seconds:

voice-port 1/0/0
timeouts initial 10

Related Commands

Command

Description

timeoutsinterdigit

Configures the interdigit timeout value for a specified voice port.

timeouts interdigit (voice port)

To configure the interdigit timeout value for a specified voice port, use the timeoutsinterdigitcommand in voice-port configuration mode. To reset to the default, use the no form of this command.

timeoutsinterdigitseconds

notimeoutsinterdigitseconds

Syntax Description

seconds

Interdigit timeout duration, in seconds. Range is 0 to 120. The default is 10.

Command Default

10seconds

Command Modes

Voice-port configuration

Command History

Release

Modification

11.3(1)T

This command was introduced on Cisco 3600 series.

Usage Guidelines

Use this command to specify the number of seconds for which the system waits (after the caller inputs the initial digit) for the caller to input a subsequent digit of the dialed digits. The timeouts interdigit timer is activated when the caller inputs a digit and is restarted each time the caller inputs another digit until the destination address is identified. If the configured timeout value is exceeded before the destination address is identified, the caller is notified through the appropriate tone and the call is terminated.

To disable the timeouts interdigit timer, set the seconds value to 0.

Examples

The following example sets the interdigit timeout value on the Cisco 3600 series for 10 seconds:

voice-port 1/0/0
timeouts interdigit 10

The following example sets the interdigit timeout value on the Cisco MC3810 for 10 seconds:

voice-port 1/1
timeouts interdigit 10

Related Commands

timeouts power-denial

To set the duration of the power denial timeout for the specified FXS voice port, use the timeoutspower-denial command in voice-port configuration mode. To reset the timeout to the default, use the no form of this command.

timeoutspower-denialms

notimeoutspower-denial

Syntax Description

ms

Length of power denial, in milliseconds (ms). Range: 0 to 2500. Default: 750.

Command Default

Default is 750 ms.

Command Modes

Voice-port configuration

Command History

Release

Modification

12.2(13)T

This command was introduced.

12.4(2)T

The maximum value of the ms argument was increased from 1500 to 2500.

Usage Guidelines

This command sets the duration of the power denial that the voice gateway applies to the FXS port when a call disconnects. During the power denial duration the caller hears silence. To disable the power denial on a port, use the nosupervisorydisconnectlcfo command.

Examples

The following example sets the power-denial duration to 500 ms:

voice-port 2/0
timeouts power-denial 500

Related Commands

Command

Description

supervisorydisconnectlcfo

Signals a disconnect on an FXS loop-start port by applying a power denial using a LCFO.

timeouts ringing

To configure the timeout value for ringing, use the timeoutsringing command in voice-port configuration mode. To reset to the default, use the no form of this command.

timeoutsringing
{ seconds | infinity }

notimeoutsringing

Syntax Description

seconds

Duration, in seconds, for which a voice port allows ringing to continue if a call is not answered. Range is 5 to 60000. Default is 180 for nonSCCP-controlled ports.

Command Default

infinity for SCCP-controlled analog ports; 180 seconds for all other ports.

Command Modes

Voice-port configuration

Command History

Release

Modification

12.0(7)XK

This command was introduced on the Cisco 2600 series, Cisco 3600 series, and Cisco MC3810.

12.1(2)T

This command was integrated into Cisco IOS Release 12.1(2)T.

12.4(11)T

The command default value was increased from 180 seconds to infinity for SCCP-controlled analog ports.

Usage Guidelines

This command allows you to limit the length of time for which a caller can continue ringing a telephone when there is no answer.

In Cisco IOS Release 12.4(11)T and later the default for this command is set to infinity for SCCP-controlled analog ports to prevent this timeout from expiring before the ringing no-answer timeout that is configured on Cisco Unified CallManager Express with the timeoutsringing command in telephony-service mode.

Examples

The following example configures voice port 0/0/1 to allow ringing for 600 seconds:

voice-port 0/0/1
timeouts ringing 600

Related Commands

Command

Description

timeoutsinitial

Configures the initial digit timeout value for a voice port.

timeoutsinterdigit

Configures the interdigit timeout value for a voice port.

timeoutsringing(telephony-service)

Sets the timeout value for ringing in a Cisco Unified CallManager Express system.

timeouts wait-release

To configure the delay timeout before the system starts the process for releasing voice ports, use the timeoutswait-release command in voice-port configuration mode. To reset to the default, use the no form of this command.

timeoutswait-release
{ seconds | infinity }

notimeoutswait-release

Syntax Description

seconds

Duration, in seconds, for which a voice port stays in the call-failure state while the Cisco router or concentrator sends a busy tone, reorder tone, or out-of-service tone to the port. Range is 3 to 3600. Default is 30.

infinity

The voice port is never released as long as the call-failure state remains.

Command Default

30 seconds

Command Modes

Voice-port configuration

Command History

Release

Modification

11.3(1) MA

This command was introduced on Cisco MC3810.

12.0(7)XK

This command was implemented on Cisco 2600 series and Cisco 3600 series.

12.1(2)T

This command was integrated into Cisco IOS Release 12.1(2)T.

Usage Guidelines

Use this command to limit the time a voice port can be held in a call failure state. After the timeout, the release sequence is enabled.

You can also use this command for voice ports with Foreign Exchange Station (FXS) loop-start signaling to specify the time allowed for a caller to hang up before the voice port goes into the parked state.

Examples

The following example configures voice port 0/0/1 to stay in the call-failure state for 180 seconds while a busy tone, reorder tone, or out-of-service tone is sent to the voice port:

voice-port 0/0/1
timeouts wait-release 180

Related Commands

Command

Description

timeoutsinitial

Configures the initial digit timeout value for a voice port.

timeoutsinterdigit

Configures the interdigit timeout value for a voice port.

timeouts teardown lmr

To configure the time for which a Land Mobile Radio (LMR) voice port waits before tearing down an LMR connection after detecting no voice activity, use the timeoutsteardownlmr command in voice-port configuration mode. To reset to the default, use the no form of this command.

timeoutsteardownlmr
{ seconds | infinity }

notimeoutsteardownlmr
{ seconds | infinity }

Syntax Description

seconds

Duration in seconds for which an LMR voice port waits before tearing down an LMR connection after detecting no voice activity. Valid values are 5 to 60000. The default is 180 seconds.

infinity

Disables disconnect supervision. The voice port does not disconnect when no voice activity is detected.

Command Default

180 seconds

Command Modes

Voice-port configuration

Command History

Release

Modification

12.3(4)XD

This command was introduced.

12.3(7)T

This command was integrated into Cisco IOS Release 12.3(7)T.

Usage Guidelines

Thetimeoutsteardownlmrcommand has an effect on an ear and mouth (E&M) voice port only if the signal type for that port is LMR.

Examples

The following example configures voice port 1/0/1 on a Cisco 3745 to remain connected for 6 seconds after no voice activity is detected by the voice port:

Specifies the delay time for releasing the calling voice port after a disconnect tone is received from the called voice port.

timeoutsdelay-duration

Configures the delay dial signal duration for a specified voice port.

timer accessrequest sequential delay

To configure the intermessage delay used when a border element (BE) is trying to determine a route from a list of neighboring BEs, use the timeraccessrequest sequential delay command in Annex G configuration mode. To reset the default value, use the no form of this command.

timeraccessrequestsequentialdelayvalue

notimer

Syntax Description

value

Amount of allowed intermessage delay (in increments of 100 ms). Range is from 0 to 10. The default is 1 (100 ms).

Command Default

1 (100 ms)

Command Modes

Annex G configuration

Command History

Release

Modification

12.2(2)XA

This command was introduced.

12.2(4)T

This command was integrated into Cisco IOS Release 12.2(4)T. Support for the Cisco AS5300, Cisco AS5350, and Cisco AS5400 is not included in this release.

12.2(2)XB1

This command was implemented on the Cisco AS5850.

12.2(11)T

This command was integrated into Cisco IOS Release 12.2(11)T.

Usage Guidelines

Setting the value of the delay to 0 causes the BE to broadcast or "blast" the AccessRequest messages to all eligible neighbors.

Examples

Related Commands

Command

Description

call-router

Enables the Annex G border element configuration commands.

timer cluster-element

To configure the length of time between dynamic capacity messages to the local gatekeeper, use the timercluster-elementcommand in gatekeeper configuration mode. To stop sending dynamic updates, use the no form of this command.

timercluster-element
{ announce | resource-update }
seconds

notimercluster-element

Syntax Description

announce

Configures the lengh of time between announcement messages to the gatekeepers in the local cluster.

resource-update

Configures the lengh of time between resource update messages to gatekeepers in the local cluster.

seconds

Number of seconds between resource updates sent to the gatekeeper. The valid range is 1 to 60. There is no default value.

Command Default

Disabled by default.

Command Modes

Gatekeeper configuration

Command History

Release

Modification

12.1(5)XM

This command was introduced.

12.2(2)T

This command was integrated into Cisco IOS Release 12.2(2)T.

12.2(2)XB1

This command was implemented on Cisco AS5850.

12.4(11)T

The resource-updatekeywordwas introduced.

Usage Guidelines

Use the timercluster-elementcommand to manage the length of time between resource updates and time between announcement messages sent to the gatekeeper. The announcement indication is exchanged at a set interval of time and carries information about the call and endpoint capacity for the zone. This allows the alternate gatekeepers to manage the bandwidth for a single zone even though the gatekeepers are in separate physical devices.

The gatekeeper assumes that the alternate gatekeeper has failed (and assumes that any previously allocated bandwidth is now available) if the gatekeeper does not receive an announcement message within six announcement periods or if the TCP connection with the gatekeeper is detected to be broken.

Lower this interval for closer tracking between elements. Raise it to lower messaging overhead.

Examples

The following command sets the announcement period to 20 seconds:

Router(config-gk)# timer cluster-element announce 20

The following command resets the announcement period to the default value:

Router(config-gk)# no timer cluster-element announce

The following example shows the time between resource update messages to gatekeepers in local cluster being set to 20 seconds:

Router(config-gk)# timer cluster-element resource-update 20

Related Commands

Command

Description

call-routinghunt-scheme

Enables capacity-based load-balancing.

zoneclusterlocal

Defines a local grouping of gatekeepers.

zoneremote

Statically specifies a remote zone if DNS is unavailable or undesirable.

timer irr period

To configure the information request response (IRR) timer, or the periodic interval of IRR messages sent by the gatekeeper, use the timerirrperiod command in gatekeeper configuration mode. To disable, use the no form of this command.

timerirrperiodminutes

notimerirrperiod

Syntax Description

minutes

Length, in minutes, of the interval between IRR messages. Range is from 1 to 60. The default is 4.

Command Default

4 minutes

Command Modes

Gatekeeper configuration

Command History

Release

Modification

12.2(11)T

This command was introduced.

Usage Guidelines

Use this command to configure IRR frequency that is included in the admission confirm (ACF) message. The IRR frequency is set to 240 seconds (4 minutes), based on an average 4-minute call hold time. The IRR allows the gatekeepers to terminate calls for which a disengage request (DRQ) has not been received. If missing DRQs are not a problem, the IRR frequency can be set to a larger value than 4 minutes, minimizing the number of unnecessary IRRs sent by a gateway.

Examples

The following example shows that the IRR timer has been configured with a value of 45, meaning that IRR messages are sent by the gatekeeper every 45 minutes:

Related Commands

Defines the time window during which the gatekeeper collects responses to one or more outstanding LRQs.

timerservertimeout

Specifies the timeout value for a response from a back-end GKTMP server.

timer lrq seq delay

To define the time interval between successive sequential location requests (LRQs), use the timerlrqseqdelaycommand in gatekeeper configuration mode. To reset to the default, use the no form of this command.

timerlrqseqdelaytime

notimerlrqseqdelay

Syntax Description

time

Time interval, in 100-millisecond units. Range is 1 to 10 (0.1 to 1 second). The default is 5 (500 milliseconds).

Command Default

5 units (500 milliseconds)

Command Modes

Gatekeeper configuration

Command History

Release

Modification

12.1(5)XM

This command was introduced.

12.2(2)T

This command was integrated into Cisco IOS Release 12.2(2)T.

12.2(2)XB1

This command was implemented on Cisco AS5850.

Usage Guidelines

The LRQ sequential timing source (SEQ) delay is used to set the time between sending LRQs to remote gatekeepers for address resolution. To resolve an address, the gatekeeper might have several remote zones configured, and it can send the LRQs simultaneously (blast) or sequentially (seq). The gatekeeper chooses the best route based on availability and cost. Using LRQs sequentially results in lower network traffic, but it can increase latency of calls when the most preferred route is unavailable.

Lowering the time increases traffic on the network but might reduce the call setup time.

Examples

The following command sets the LRQ delay timer to 100 milliseconds:

timer lrq seq delay 1

The following command resets the LRQ delay timer to the default value:

no timer lrq seq delay

Related Commands

Command

Description

timerlrqwindow

Defines the time window during which the gatekeeper collects responses to one or more outstanding LRQs.

timer lrq seq delay centisec

To define the time interval between successive sequential location requests (LRQs), use the timerlrqseqdelaycenticescommand in gatekeeper configuration mode. To reset to the default, use the no form of this command.

timerlrqseqdelaycentisectime

notimerlrqseqdelaycentisec

Syntax Description

time

Time interval, in 100-millisecond units. Range is 1 to 10 (0.1 to 1 second). The default is 1(100 milliseconds).

Command Default

Timers are set to their default value.

Command Modes

Gatekeeper configuration

Command History

Release

Modification

12.4(4)T

This command was introduced.

Usage Guidelines

The LRQ sequential timing source (SEQ) delay is used to set the time between sending LRQs to remote gatekeepers for address resolution. To resolve an address, the gatekeeper might have several remote zones configured, and it can send the LRQs simultaneously (blast) or sequentially (seq). The gatekeeper chooses the best route based on availability and cost. Using LRQs sequentially results in lower network traffic, but it can increase latency of calls when the most preferred route is unavailable.

Lowering the time increases traffic on the network but might reduce the call setup time.

Note

This command cannot be configured at the same time as the timerlrqseqdelaycommand.

Examples

The following command sets the LRQ delay timer to 100 milliseconds:

timer lrq seq delay centisec 1

The following command resets the LRQ delay timer to the default value:

no timer lrq seq delay centisec

Related Commands

Command

Description

timerlrqwindowdecisec

Defines the time window during which the gatekeeper collects responses to one or more outstanding LRQs.

timer lrq window

To define the time window during which the gatekeeper collects responses to one or more outstanding LRQs, use the timerlrqwindowcommand in gatekeeper configuration mode. To reset to the default, use the no form of this command.

timerlrqwindowseconds

notimerlrqwindow

Syntax Description

seconds

Time window, in seconds. Range is 1 to 15. The default is 3.

Command Default

3 seconds

Command Modes

Gatekeeper configuration

Command History

Release

Modification

12.1(5)XM

This command was introduced.

12.2(2)T

This command was integrated into Cisco IOS Release 12.2(2)T.

12.2(2)XB1

This command was implemented on Cisco AS5850.

Usage Guidelines

Increasing the time can increase the call success rate but might reduce the overall time for call setup.

Examples

The following command sets the timer to 5 seconds:

timer lrq window 5

The following command sets the timer to the default value:

no timer lrq window

Related Commands

Command

Description

timerlrqseqdelay

Defines the time interval between successive sequential LRQs.

timer lrq window decisec

To define the time window during which the gatekeeper collects responses to one or more outstanding LRQs, use the timerlrqwindowdeciseccommand in gatekeeper configuration mode. To reset to the default, use the no form of this command.

timerlrqwindowdecisectime

notimerlrqwindowdecisec

Syntax Description

time

Time window, in seconds. Range is 1 to 15. The default is 2.

Command Default

Timers are set to their default value.

Command Modes

Gatekeeper configuration

Command History

Release

Modification

12.4(4)T

This command was introduced.

Usage Guidelines

Increasing the time can increase the call success rate but might reduce the overall time for call setup.

Note

This command cannot be in effect at the same time as the timerlrqwindowcommand.

Examples

The following command sets the timer to 5 seconds:

timer lrq window decisec 2

The following command sets the timer to the default value:

no timer lrq window decisec

Related Commands

Command

Description

timerlrqseqdelaycentsec

Defines the time interval between successive sequential LRQs.

timer media-inactive

To enable the timer for media inactivity detection using the digital signal processor (DSP) (based on RTP as the only criterion) and to configure a multiplication factor based on the real-time control protocol (RTCP) timer interval, use thetimermedia-inactive command in gateway configuration mode. To reset to the default, use thenoform of this command.

timermedia-inactivemultiple

notimermedia-inactivemultiple

Syntax Description

multiple

Multiples of the RTCP report transmission interval. Range is 4 to 1000. The default is 5, and the recommended value is 5.

Command Default

A call is considered inactive if no RTP packet activity is detected for a period of time calculated as five times the interval set by the iprtcpreportinterval command.

Command Modes

Gateway configuration

Command History

Release

Modification

12.4(4)T

This command was introduced.

Usage Guidelines

When the timermedia-inactive command is used, the gateway uses the inactivity timer as a combination of thetimermedia-inactive command and the iprtcpreportinterval command. The timermedia-inactivecommand uses DSP statistics. This capability is based on the configuration of callfeature parameters using application command-line interface (CLI) to enable control.

The media are considered inactive only if there is no transfer of RTP packets in the send direction and no RTP packets in the receive direction. If RTP is present in either the send or receive direction, it is considered active. In this mode, DSP filters out any comfort noise packets, and the presence of any comfort noise packet is considered inactivity in either direction.

The multiple argument (or multiplication factor) is multiplied by the interval that is set using theiprtcpreportinterval command. This command configures the average interval between successive RTCP report transmissions for a given voice session. For example, if the value argument is set to 25,000 milliseconds, an RTCP report is sent every 25 seconds, on average. If no RTP packets are received during the calculated interval, the call is disconnected. The gateway signals the disconnect to the VoIP network and the time-division multiplexing (TDM) network so that upstream and downstream devices can clear their resources.

Examples

The following example uses the iprtcpreportintervalcommand to set the reporting interval to 5000 milliseconds, and then the timermedia-inactive command to set the multiplication factor to 10. The result is that calls detected as inactive for 50 seconds (5,000 milliseconds times 10) will be disconnected.

Related Commands

Command

Description

iprtcpreportinterval

Configures the minimum interval of RTCP report transmissions.

timer receive-rtcp

To enable the Real-Time Control Protocol (RTCP) timer and to configure a multiplication factor for the RTCP timer interval for Session Initiation Protocol (SIP) or H.323, use thetimerreceive-rtcp command in gateway configuration mode. To reset to the default, use theno form of this command.

timerreceive-rtcptimer

notimerreceive-rtcptimer

Syntax Description

timer

Multiples of the RTCP report transmission interval. Range is 0 to 1000. Default is 0. Recommended value is 5.

Command Default

The default value for the timer
argument is 0 multiples, which disables the timer so that no silence detection is in effect.

Command Modes

Gateway configuration

Command History

Release

Modification

12.2(2)XB

This command was introduced.

12.2(8)T

This command was integrated into Cisco IOS Release 12.2(8)T. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.

12.2(11)T

This command was implemented on the Cisco AS5300, Cisco AS5350, and Cisco AS5400.

Usage Guidelines

Thetimerreceive-rtcp command uses library-based detection and the receipt of either Real-Time Protocol (RTP) or RTCP packets is considered activity on a call. Silence detection occurs only if there are no packets received for both RTP and RTCP.

When the iprtcpreportinterval and timerreceive-rtcp commands are used, the gateway uses RTCP report detection, rather than RTP packet detection, to determine whether calls on the gateway are still active or should be disconnected. RTCP report detection is therefore more reliable than RTP packet detection because there can be periods during voice calls when one or both parties are not sending RTP packets.

One common example of a voice session in which no RTP is sent is when a caller dials into a conference call and mutes that endpoint. If voice activity detection (VAD, also known as silence suppression) is enabled, no RTP packets are sent while the endpoint is muted. However, the muted endpoint continues to send RTCP reports at the interval specified by the iprtcpreportintervalcommand.

The timerreceive-rtcptimer
argument (or m
factor for multiplication factor) is multiplied by the interval that is set using theiprtcpreportintervalcommand. If no RTP or RTCP packets are received during the calculated interval, the call is disconnected. The gateway signals the disconnect to the VoIP network and the time-division multiplex (TDM) network so that upstream and downstream devices can clear their resources. The gateway sends a Q.931 DISCONNECT message to the TDM network and a SIP BYE or H.323 ReleaseComplete message to the VoIP network to clear the call when the timer expires. The Q.931 DISCONNECT message is sent with a cause code value of 3 (no route) for SIP calls and a cause code value of 41 (temporary failure) for H.323 calls. No Q.931 Progress Indicator (PI) value is included in the DISCONNECT message.

To show timer-related output for SIP calls, use the debugccsipevents command. To show timer-related output for H.323 calls, use the debugcch323h225command.

Examples

The following example sets the multiplication factor to 10 (or x
* 10, where x
is the interval that is set with theiprtcpreportinterval command):

Related Commands

Traces the state transition of the gateway H.225 state machine based on the processed events.

debugccsipevents

Displays all SIP SPI events tracing and traces the events posted to SIP SPI from all interfaces.

iprtcpreportinterval

Configures the minimum interval of RTCP report transmissions.

timer receive-rtp

To configure the Real-Time Transport Protocol (RTP) timeout interval to clear connections that pause indefinitely, use the timerreceive-rtp command in gateway configuration mode. To reset the timer to the default value, use the no form of this command.

timerreceive-rtpseconds

notimerreceive-rtp

Syntax Description

seconds

Timer value, in seconds. Range: 180 to 86400. Default: 1200.

Command Default

1200 seconds (20 minutes)

Command Modes

Gateway configuration (config-gateway)

Command History

Release

Modification

12.3(8)T

This command was introduced.

12.4(20)T

This command was modified. The recommended timer range is defined as 1200 seconds.

Usage Guidelines

This command is used to configure the RTP timeout interval in seconds. The timeout value is used to clear connections that pause indefinitely. The recommended value is 1200 seconds, or 20 minutes.

Examples

The following example shows the RTP timeout interval set to the recommended 1200 seconds (20 minutes).

Specifies the maximum number of sessions that need to be supported by the profile.

timer server retry

To set the gatekeeper’s retry timer for failed Gatekeeper Transaction Message Protocol (GKTMP) connections, use the timerserverretry command in gatekeeper configuration mode. To reset the timer to its default, use the no form of this command or the defaultservertimerretry command.

servertimerretryseconds

noservertimerretry

defaultservertimerretry

Syntax Description

seconds

Number of seconds for which the gatekeeper should wait before retrying the GKTMP server. Range is from 1 through 300. The default is 30.

Command Default

30 seconds

Command Modes

Gatekeeper configuration

Command History

Release

Modification

12.2(11)T

This command was introduced.

Usage Guidelines

After the gatekeeper detects that its GKTMP server TCP connection has failed, the gatekeeper retries the server after an interval based on the setting of this timer, and keeps retrying until the connection is established.

This timer applies only to deployments where static triggers are used between the gatekeeper and the GKTMP server. If dynamic triggers are used, the server must determine and implement a retry mechanism if the TCP connection to the gatekeeper fails.

Examples

The following example shows that the retry timer has been set to 45 seconds:

Related Commands

Command

Description

timerservertimeout

Specifies the timeout value for a response from a back-end GKTMP server.

timer server timeout

To specify the timeout interval for a response from a back-end Gatekeeper Transaction Message Protocol (GKTMP) application server, use the timerservertimeoutcommand in gatekeeper configuration mode. To reset to the default, use the no form of this command.

Syntax Description

Time (in ms) to wait for a 100 response to an INVITE request. Range is from 100 to 1000. Default is 500.

connectnumber

Time (in ms) to wait for a 200 response to an ACK request. Range is from 100 to 1000. Default is 500.

disconnectnumber

Time (in ms) to wait for a 200 response to a BYE request. Range is from 100 to 1000. Default is 500.

expiresnumber

Time (in ms) for which an INVITE request is valid. Range is from 60000 to 300000. Default is 180000.

Command Default

trying, connect, and disconnect--500 msexpires--180000 ms

Command Modes

SIP user-agent configuration (config-sip-ua)

Command History

Release

Modification

12.1(1)T

This command was introduced.

12.1(3)T

This command was modified to change the names of the parameters. Two of the parameters (invite-wait-180 and invite-wait-200) were combined into one (trying).

12.2(2)XA

This command was implemented on the Cisco AS5400 and AS5350.

12.2(2)XB1

This command was implemented on the Cisco AS5850.

12.2(8)T

This command was integrated into Cisco IOS Release 12.2(8)T and implemented on Cisco 7200 series routers. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.

12.2(11)T

This command is supported on the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 in this release.

Usage Guidelines

If you used an earlier version of this command to configure timers, the timer settings are maintained. The output of the show running-config command reflects both previous and current timers.

To reset this command to the default value, you can also use the default command.

Examples

The following example sets the trying timers to the default of 500 ms.

Router(config)# sip-ua
Router(config-sip-ua)# timers trying 500

Related Commands

Command

Description

default

Sets a command to its default.

inband
-
alerting

Specifies an inband-alerting SIP header.

max
-
forwards

Specifies the maximum number of hops for a request.

retry
(
SIP user
-
agent
)

Configures the SIP signaling timers for retry attempts.

transport

Enables SIP UA transport for TCP/UDP.

timers buffer-invite

To enable the Session Initiation Protocol (SIP) buffer-invite timer and to configure the timer interval, use the timers buffer-invite command in SIP user-agent configuration mode. To restore the default value, use the no form of this command.

timersbuffer-invitetimer

notimersbuffer-invite

Syntax Description

timer

Buffer-invite timer value, in ms. Range is 50 to 5000.

Command Default

Disabled

Command Modes

SIP user-agent configuration

Command History

Release

Modification

12.3(8)T

This command was introduced.

Usage Guidelines

Use this command to enable the SIP buffer-invite timer and to configure the timer interval.

Examples

Related Commands

Command

Description

sip-ua

Enables SIP user-agent configuration commands.

timers comet

To set how long the Session Initiation Protocol (SIP) user agent (UA) waits before retransmitting conditions-met (COMET) requests, use the timerscometcommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.

timerscomettime

notimerscomet

Syntax Description

time

Waiting time, in milliseconds. Range is 100 to 1000. The default is 500.

Command Default

500 milliseconds

Command Modes

SIP user-agent configuration

Command History

Release

Modification

12.2(2)XB

This command was introduced.

12.2(2)XB1

This command was implemented on Cisco AS5850.

12.2(8)T

This command was integrated into Cisco IOS Release 12.2(8)T. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.

12.2(11)T

This command was inplemented on the Cisco AS5300, Cisco AS5350, and Cisco AS5400 in this release.

Usage Guidelines

COMET, or conditions met, indicates whether preconditions for a given call or session have been met. This command is applicable only with calls involving quality of service (QoS) (calls other than best-effort).

Examples

The following example sets retransmission time to 500 milliseconds:

Router(config)# sip-ua
Router(config-sip-ua)# timers comet 500

Related Commands

Command

Description

showsip-uastatistics

Displays response, traffic, timer, and retry statistics.

showsip-uatimers

Displays the current settings for SIP UA timers.

timersprack

Sets how long the UA waits before retransmitting a PRACK request.

timers connect

To set how long the Session Initiation Protocol (SIP) user agent (UA) waits for a 200 response to an ACK request, use the timersconnectcommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.

timersconnectnumber

notimersconnectnumber

Syntax Description

number

Waiting time, in milliseconds. Range is from 100 to 1000. The default is 500.

Command Default

Command Modes

Command History

This command was modified to change the names of the parameters. Two of the parameters (invite-wait-180 and invite-wait-200) were combined into one (trying).

12.2(2)XA

This command was implemented on the Cisco AS5350 and Cisco AS5400.

12.2(2)XB1

This command was implemented on the Cisco AS5850.

12.2(8)T

This command was integrated into Cisco IOS Release 12.2(8)T and implemented on Cisco 7200 series. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.

Usage Guidelines

If you used the previous more generic timers command to configure timers, your previous timer settings are maintained. The output of the show running-config command reflects both timers.

To reset this command to the default value, you can also use the default command.

Examples

The following example sets connect time to 200 milliseconds:

sip-ua
timers connect 200

Related Commands

Command

Description

sip-ua

Enables the SIP user-agent configuration commands.

timers connection aging

To globally set the time before the Session Initiation Protocol (SIP) user agent (UA) ages out a TCP or UDP connection because of inactivity, use the timersconnectionagingcommand in SIP user-agent configuration mode. To reset this time to the default value, use the no form of this command.

timersconnectionagingtimer-value

notimersconnectionaging

Syntax Description

timer-value

Time to wait, in minutes, before aging out a TCP or UDP connection because of inactivity. Range is from 5 to 30. Default is 5.

Command Default

5 minutes

Command Modes

SIP user-agent configuration

Command History

Release

Modification

12.3(8)T

This command was introduced.

Usage Guidelines

The minimum value of this connection is 5 minutes.

Examples

The following example ages out a connection in 10 minutes:

sip-ua
timers connection aging 10

Related Commands

Command

Description

showsip-uatimers

Displays the current settings for the SIP UA timers.

sip-ua

Enables the SIP user-agent configuration commands.

timersexpires

Sets how long a SIP INVITE request is valid.

timers disconnect

To set how long the Session Initiation Protocol (SIP) user agent (UA) waits for a 200 response to a BYE request, use the timerscommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.

timersdisconnecttime

notimersdisconnecttime

Syntax Description

time

Waiting time, in milliseconds. Range is 100 to 1000. The default is 500.

Command Default

Command Modes

Command History

This command was modified to change the names of the parameters. Two of the parameters (invite-wait-180 and invite-wait-200) were combined into one (trying).

12.2(2)XA

This command was implemented on the Cisco AS5350 and Cisco AS400.

12.2(2)XB1

This command was implemented on Cisco AS5850.

12.2(8)T

This command was integrated into Cisco IOS Release 12.2(8)T and implemented on Cisco 7200 series. Supported for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 platforms is not included in this release.

Usage Guidelines

If you used the previous more generic timers command to configure timers, your previous timer settings are maintained. The output of the show running-config command reflects both timers.

To reset this command to the default value, you can also use the default command.

Examples

The following example sets disconnect time to 200 milliseconds:

sip-ua
timers disconnect 200

Related Commands

Command

Description

sip-ua

Enables the SIP user-agent configuration commands.

timers dns

To set how long the Session Initiation Protocol (SIP) user agent (UA) waits for the DNS resolved address cache,
use the timersdnscommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.

timersdns

notimersdns

Syntax Description

registrar-cache

DNS cache refresh time for registrar.

time

Waiting time, in seconds. Range is 60 to 65535. The default is 65535.

Command Default

65535 seconds

Command Modes

SIP user-agent configuration

Command History

Release

Modification

15.1(4)T

This command was introduced.

Usage Guidelines

If you used the previous more generic timers command to configure timers, your previous timer settings are maintained. The output of the show running-config command reflects both timers.

To reset this command to the default value, you can also use the default command.

Examples

The following example sets DNS cache refresh time to 200 seconds:

sip-ua
timers dns registrar-cache 200

Related Commands

Command

Description

sip-ua

Enables the SIP user-agent configuration commands.

timers expires

To set how long a Session Initiation Protocol (SIP) INVITE request is valid, use the timerscommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.

timersexpirestime

notimersexpires

Syntax Description

time

Expiration time, in ms. Range is 60,000 to 300,000. Default is 180000.

Command Default

180000 ms

Command Modes

SIP user-agent configuration

Command History

Release

Modification

12.1(1)T

This command was introduced on the Cisco 2600 series, Cisco 3600 series, and Cisco AS5300.

12.1(3)T

This command was modified to change the names of the parameters. Two of the parameters (invite-wait-180 and invite-wait-200) were combined into one (trying).

12.2(2)XA

This command was implemented on the Cisco AS5350 and Cisco AS5400.

12.2(2)XB1

This command was implemented on the Cisco AS5850.

12.2(8)T

This command was integrated into Cisco IOS Release 12.2(8)T and implemented on the Cisco 7200 series. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.

Usage Guidelines

If you used the previous more generic timers command to configure timers, your previous timer settings are maintained. The output of the show running-config command reflects both timers.

To reset this command to the default value, you can also use the default command.

Examples

The following example sets the expiration time to 180,000 ms:

sip-ua
timers expires 180000

Related Commands

Command

Description

default

Enables a default aggregation cache.

sip-ua

Enables the SIP user-agent configuration commands.

timers

Configures the SIP signaling timers.

timers hold

To enable the Session Initiation Protocol (SIP) hold timer and configure the timer interval before disconnecting a held call, use the timersholdcommand in SIP user-agent configuration mode. To restore the default value, use the no form of this command.

timersholdtime

notimershold

Syntax Description

time

Time (in minutes) to wait before sending a BYE request. Range is 15 to 2880. Default is 2880.

Command Default

Enabled

time: 2880 minutes

Command Modes

SIP user-agent configuration mode

Command History

Release

Modification

12.3(1)

This command was introduced.

Usage Guidelines

The hold timer is typically activated when a gateway receives a call hold request from the other endpoint, for example, a SIP phone.

Examples

The following example sets the hold timer to expire after 75 minutes:

Router(config-sip-ua)# timers hold 75

Related Commands

Command

Description

show sip-ua timers

Displays the current settings for SIP user agent timers.

suspend
-
resume

Enables SIP Suspend and Resume (call-hold) functionality.

timer receive-rtcp

Enables media inactivity Real-Time Control Protocol (RTCP) timer.

timers keepalive

To set the keepalive timers interval between sending Options message requests when the session initiation protocol (SIP) servers are in the down state, use the timerskeepalive command in SIP user agent configuration mode. To restore the keepalive timers to the default value of 120 seconds when active or 30 seconds when down, use the no form of this command.

timerskeepalive
{ active | down }
seconds

notimerskeepalive
{ active | down }
seconds

Syntax Description

active

SIP servers are in the active state.

down

SIP servers are in the down state.

seconds

Time in seconds between keepalive messages when the SIP servers are either active or down, as follows:

If active is specified, the range is from 10 to 600 seconds; the default value is 120 seconds.

If down is specified, the range is from 1 to 120 seconds; the default value is 30 seconds.

Command Default

The default value for the active state is 120 seconds and the default value for the down state is 30 seconds.

Command Modes

SIP user agent configuration

Command History

Release

Modification

12.4(6)T

This command was introduced.

Usage Guidelines

Use this command to change the keepalive message time interval in seconds between the sending Options message requests when the SIP server or servers are either in the active or down state.

Examples

The following example sets the keepalive message time interval to 20 seconds when the SIP server is in the active state:

sip-ua
timers keepalive active 20

The following example sets the keepalive message time interval to 10 seconds when the SIP server is in the down state:

sip-ua
timers keepalive down 10

Related Commands

Command

Description

busyoutmonitorkeepalive

Selects a voice port or ports to be busied out in cases of a keepalive failure.

keepalivetarget

Identifies a SIP server that will receive keepalive packets from the SIP gateway.

keepalivetrigger

Sets number of Options message requests that must consecutively receive responses from the SIP servers in order to unbusy the voice ports when in the down state.

retrykeepalive

Sets the retry keepalive count for retransmissions.

timers notify

To set how long the Session Initiation Protocol (SIP) user agent (UA) waits before retransmitting a Notify message, use the timersnotifycommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.

timersnotifytime

notimersnotify

Syntax Description

time

Waiting time, in milliseconds. Range is 100 to 1000. The default is 500.

Command Default

500 milliseconds

Command Modes

SIP user-agent configuration

Command History

Release

Modification

12.2(2)XB

This command was introduced.

12.2(2)XB2

This command was implemented on Cisco AS5850.

12.2(8)T

This command was integrated into Cisco IOS Release 12.2(8)T. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.

Cisco IOS XE Release 2.5

This command was integrated into Cisco IOS XE Release 2.5.

Usage Guidelines

A Notify message informs the user agent that initiated the transfer or Refer request about the outcome of the SIP transaction.

Examples

The following example sets retransmission time to 500 milliseconds:

Router(config)# sip-ua
Router(config-sip-ua)# timers notify 500

Related Commands

Command

Description

showsip-uastatistics

Displays response, traffic, timer, and retry statistics

showsip-uatimers

Displays the current settings for SIP UA timers

timers prack

To set how long the Session Initiation Protocol (SIP) user agent (UA) wait s before retransmitting a provisional response acknowledgement (PRACK) request, use the timersprackcommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.

timerspracktime

notimersprack

Syntax Description

time

Waiting time, in milliseconds. Range is 100 to 1000. The default is 500.

Command Default

500 milliseconds

Command Modes

SIP user-agent configuration

Command History

Release

Modification

12.2(2)XB

This command was introduced.

12.2(2)XB1

This command was implemented on Cisco AS5850.

12.2(8)T

This command was integrated into Cisco IOS Release 12.2(8)T. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.

12.2(11)T

This command was applicable to the Cisco AS5300, Cisco AS5350, and Cisco AS5400 in this release.

Usage Guidelines

PRACK allows reliable exchanges of SIP provisional responses between SIP endpoints. When the retransmission value is set, retransmissions are sent with an exponential backoff of up to 4 seconds. That is, the retransmission interval for each packet increases exponentially until 4 seconds is reached.

Examples

The following example sets retransmission time to 500 milliseconds:

Router(config)# sip-ua
Router(config-sip-ua)# timers prack 500

Related Commands

Command

Description

showsip-uastatistics

Displays response, traffic, timer, and retry statistics.

showsip-uatimers

Displays the current settings for SIP UA timers.

timerscomet

Sets how long the UA waits before retransmitting a COMET request.

timers refer

To set how long the Session Initiation Protocol (SIP) user agent (UA) waits before retransmitting a Refer request, use the timersrefercommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.

timersrefertime

notimersrefer

Syntax Description

time

Waiting time, in milliseconds. Range is from 100 to 1000. Default is 500.

Command Default

500 milliseconds

Command Modes

SIP user-agent configuration

Command History

Release

Modification

12.2(11)YT

This command was introduced.

12.2(15)T

This command is supported on the Cisco 1700 series, Cisco 2600 series, Cisco 3600 series, and the Cisco 7200 series routers in this release.

Usage Guidelines

A SIP Refer request is sent by the originating gateway to the receiving gateway and initiates call forward and call transfer capabilities.

Examples

The following example sets retransmission time to 500 milliseconds:

Router(config)# sip-ua
Router(config-sip-ua)# timers refer 500

Related Commands

Command

Description

showsip-uastatistics

Displays response, traffic, timer, and retry statistics.

showsip-uatimers

Displays the current settings for SIP UA timers.

timers register

To set how long the Session Initiation Protocol (SIP) user agent (UA) waits before sending register requests, use the timersregistercommand in SIP user-agent configuration mode. To reset this value to the default, use the no form of this command.

timersregistermilliseconds

notimersregister

Syntax Description

milliseconds

Waiting time, in milliseconds. Range is from 100 to 1000. Default is 500.

Command Default

500 milliseconds

Command Modes

SIP user-agent configuration

Command History

Release

Modification

12.2(15)ZJ

This command was introduced.

12.3(4)T

This command was integrated into Cisco IOS Release 12.3(4)T.

12.4(22)T

Support for IPv6 was added.

Examples

The following example sends register requests every 500 milliseconds:

sip-ua
retry invite 9
retry register 9
timers register 500

Related Commands

Command

Description

retryregister

Sets the total number of SIP registers to send.

timers rel1xx

To set how long the Session Initiation Protocol (SIP) user agent (UA) waits before retransmitting a reliable1xx response, use the timersrel1xxcommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.

timersrel1xxtime

notimersrel1xx

Syntax Description

time

Waiting time, in milliseconds. Range is 100 to 1000. The default is 500.

Command Default

500 milliseconds

Command Modes

SIP user-agent configuration

Command History

Release

Modification

12.2(2)XB

This command was introduced.

12.2(2)XB1

This command was implemented on Cisco AS5850.

12.2(8)T

This command was integrated into Cisco IOS Release 12.2(8)T. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.

12.2(11)T

This command is supported on the Cisco AS5300, Cisco AS5350, and Cisco AS5400 in this release.

Examples

The following example sets retransmission time to 400 milliseconds:

Router(config)# sip-ua
Router(config-sip-ua)# timers rel1xx 400

Related Commands

Command

Description

retryrel1xx

Configures how many times the reliable1xx response is retransmitted.

showsip-uastatistics

Displays response, traffic, timer, and retry statistics.

showsip-uatimers

Displays the current settings for SIP UA timers.

timers trying

To set how long the Session Initiation Protocol (SIP) user agent (UA) wait s for a 100 response to a SIP INVITE request, use the timerscommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.

timerstryingtime

notimerstrying

Syntax Description

time

Waiting time, in milliseconds. Range is 100 to 1000. The default is 500.

Command Default

500 milliseconds

Command Modes

SIP user-agent configuration

Command History

Release

Modification

12.1(1)T

This command was introduced on the Cisco 2600 series, Cisco 3600 series, and Cisco AS5300.

12.1(3)T

This command was modified to change the names of the parameters. Two of the parameters (invite-wait-180 and invite-wait-200) were combined into one (trying).

12.2(2)XA

This command was implemented on Cisco AS5350 and Cisco AS5400.

12.2(2)XB1

This command was implemented on Cisco AS5850.

12.2(8)T

This command was integrated into Cisco IOS Release 12.2(8)T and implemented on Cisco 7200 series routers. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.

Usage Guidelines

If you used the previous more generic timers command to configure timers, your previous timer settings are maintained. The output of the show running-config command reflects both timers.

To reset this command to the default value, you can also use the default command.

Examples

The following example sets trying time to 500 milliseconds.

sip-ua
timers trying 500

Related Commands

Command

Description

sip-ua

Enables the SIP user-agent configuration commands.

timing clear-wait

To set the minimum amount of time between the inactive seizure signal and the call being cleared for a specified voice port, use the timingclear-waitcommand in voice-port configuration mode. To reset to the default, use the no form of this command.

timingclear-waittime

notimingclear-waittime

Syntax Description

time

Minimum time, in milliseconds, between an inactive seizure signal and the call being cleared. Cisco 3600 series range is from 200to 2000. The default for both is 400.

Command Default

400 milliseconds

Command Modes

Voice-port configuration

Command History

Release

Modification

11.3(1)T

This command was introduced on Cisco 2600 and Cisco 3600 series routers.

Usage Guidelines

This command is supported on E&M ports only.

Examples

The following example sets the clear-wait duration on a voice port to 300 milliseconds: